Now it is so bright as 7.7 mag (May 4, Marco Goiato). It will approach to the sun down to 0.66 a.u. in July, and it is expected to brighten up to 4-5 mag. Before the perihelion passage, it keeps observable until mid May in the Northern Hemisphere, or until early June in the Southern Hemisphere. After the perihelion passage, it will be observable in excellent condition after late July in the Northern Hemisphere. In the Southern Hemisphere, it keeps unobservable until early September.

It brightened rapidly in outburst in mid October. Now it is bright as 8.4 mag (May 10, Marco Goiato). It keeps 8-9 mag until July. In the Northern Hemishpere, it keeps observable in the morning sky until July. In the Southern Hemisphere, it keeps observable in good condition for a long time until the comet fades out.

Now it is bright as 8.6 mag (May 3, Carlos Labordena). The brightening is somewhat slow, but it is expected to brighten up to 6-7 mag in 2014 autumn. It keeps observable in good condition for a long time in the Northern Hemisphere. It keeps locating low in the Southern Hemisphere.

It passed only 0.4 A.U. from the earth, and 0.8 A.U. from the sun in November and December, and brightened up to 4.7 mag (Nov. 28, Juan Jose Gonzalez). Now it is 11.4 mag (May 4, Carlos Labordena). It keeps observable until 2014 autumn when the comet fades out.

Now it is 14.3 mag (Mar. 30, Taras Prystavski). It is expected to brighten up to 7.5 mag and to be observable in excellent condition from summer to autumn in 2014 in the Southern Hemisphere. It keeps observable for a long time in the Southern Hemisphere, although it becomes low temporarily in May. It keeps unobservable for a while in the Northern Hemisphere. It will pass extremely close to Mars in 2014 October.

Now it is 14.3 mag (May 16, Taras Prystavski). It will approach to the earth down to 0.06 a.u. from May to June, and it is expected to brighten up to 11 mag. In the Northern Hemisphere, it keeps observable in excellent condition until the highlight in late May while the comet will be brightening rapidly. In the Southern Hemisphere, it is not observable now. But it will be observable in mid May. Then it keeps observable in excellent condition at the highlight and after that while the comet will be fading.

Cometary activity began. Now it is bright as 13.5 mag (May 7, A. Novichonok and T. Prystavski). It will brighten up to 7 mag in July, and will be observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable temporarily in mid July, but it is observable before and after mid July.

It brightened up to 2 mag by unusual major outburst in 2007. It is coming back now. It will be 14 mag at best by normal prediction. But actually, it is already very bright as 13.5 mag (Nov. 25, Hidetaka Sato). Appearing in the morning sky. In the Northern Hemisphere, it keeps observable until it fades out in 2015. In the Southern Hemisphere, it keeps extremely low after this.

Brightened rapidly. Now it is 14.0 mag (Mar. 28, Sandor Szabo). It will brighten up to 13-14 mag and will be observable in excellent condition from spring to summer in the Southern Hemisphere. It locates somewhat low in the Northern Hemispehre.

Now it is 13.7 mag (Apr. 18, Taras Prystavski). It keeps 14 mag for a long time until 2014 summer. It keeps observable in good condition in the Northern Hemisphere. It keeps unobservable after this in the Southern Hemisphere.

Now it is very bright as 12.9 mag (Apr. 30, Taras Prystavski). It brightened up to 9 mag at the discovery in 2005. It will approach to the sun down to 0.8 a.u. on May 29. However, it will brighten up to 13-14 mag at best. In this apparition, it keeps observable in the morning sky all through the period. But it locates extremely low around the perihelion passage in the Northern Hemisphere.

First return of a new periodic comet discovered in 1998. It brightened up to 10 mag at the discovery. Now it is 13.3 mag (Apr. 30, Sandor Szabo). A bit fainter than originally expected. But in the Northern Hemisphere, it keeps observable in excellent condition from autumn to spring. It locates somewhat low in the Southern Hemisphere.

Now it is bright as 13.1 mag (May 7, Taras Prystavski). It keeps 13-14 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. In the Southern Hemisphere, it is not observable until 2014 autumn.

Now it is 14.9 mag (Apr. 18, Taras Prystavski). It is expected to brighten up to 5 mag in 2014 autumn. Now it is not observable. It will be observable again in July in the Southern Hemisphere, or in August in the Northern Hemisphere.

Now it is 13.3 mag and already visible visually (May 3, Seiichi Yoshida). It is expected to brighten up to 13 mag and to be observable in good condition in 2015. In 2014, it keeps observable in good condition from winter to summer.

Now it is not observable. In the Northern Hemisphere, it will appear in the morning sky in late July. Then it will be observable at 12-13 mag in excellent condition from 2014 summer to 2015 spring. In the Southern Hemisphere, it will locate low around the highlight.

It brightened up to 14.0 mag from spring to summer in 2013 (June 11, Sandor Szabo). Now it is 15.7 mag, much brighter than origianlly predicted (Apr. 24, Taras Prystavski). In the Northern Hemisphere, it will be observable at 15-16 mag in excellent condition until spring. It locates somewhat low in the Southern Hemisphere.

Now it is 16.5 mag (Apr. 16, Taras Prystavski). It keeps 17 mag for a long time from 2014 to 2015. It is observable in excellent condition in the Northern Hemisphere. It is observable only until 2014 summer in the Southern Hemisphere.

Now it is 16.1 mag (May 5, Taras Prystavski). It is expected to brighten up to 4-5 mag from autumn to winter in 2015. It already locates high in the Southern Hemisphere. It will be getting higher gradually also in the Northern Hemisphere. It is observable in good condition in the Southern Hemisphere until the highlight, or in the Northern Hemisphere after the highlight.

It approached to the earth down to 0.68 a.u. in spring, and brightened up to 15.6 mag (Mar. 29, Taras Prystavski). Now it is fading. It has already faded down to 17.4 mag (May 3, P.-J. Dekelver). It will be fainter than 18 mag in June.

Now it is 17.5 mag (Apr. 5, N. James). It keeps observable at 18 mag for a long time from 2013 to 2016. It keeps locating high in the Northern Hemisphere. It keeps locating very low in the Southern Hemipshere.

Now it is 18.2 mag (Apr. 22, D. Herald). It keeps 17-18 mag for a long time from 2013 to 2014. It is observable in excellent condition in the Southern Hemisphere. It is not observable in the Northern Hemisphere.

It became much brighter than expected, and reached up to 8.5 mag (Aug. 15, Alexandre Amorim). Now it is fading rapidly. It has already faded down to 17.5 mag (Apr. 23, K. Hills). In the Southern Hemisphere, it will keep observable in good condition for a long time until 2014 summer when the comet fades out. It will never be observable again in the Northern Hemisphere.

First return of a new periodic comet which brightened up to 13 mag in 2007. It was expected to brighten up to 13 mag again and observable in good condition from summer to autumn in 2014. But actually, it is 17.5 mag, much fainter than expected (Apr. 28, Taras Prystavski). It will be 16 mag at best actually.

First return of a new periodic comet discovered in 2005. It was expected to be observable at 17 mag for a long time from 2013 to 2014. However, it has not been recovered yet. Actually, it is much fainter than predicted, fainter than 20 mag (Aug. 6, Jean-Francois Soulier).

Now it is 17.8 mag (Apr. 26, A. Maury, J.-F. Soulier). It has brightened in outburst up to 14 mag twice, in 2006 January and 2011 May. It will pass the perihelion in 2015. It keeps observable at 17 mag for a long time after this.

It brightened up to 12-13 mag from 2012 to 2013. It has already gone away. But it keeps 18 mag for a while, and it will be observable in good condition in the Southern Hemisphere. It will be getting higher gradually also in the Northern Hemisphere.

Now it is 18.1 mag (Mar. 29, M. Jaeger, W. Vollmann, E. Prosperi, S. Prosperi). It keeps 18 mag for a very long time from 2013 to 2018. It locates high in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere.

Now it is 19.4 mag (May 3, A. Waszczak). First return of a new periodic comet which brightened up to 13 mag in outburst in 2008. It will be observable in good condition from spring to summer. However, it will be only 19-20 mag at best in this apparition.